Assortments of holesaws composed of popular sizes for the engineering industry, water and sanitation industry and electric installation industry.  9-Piece Kit contains:  6 holesaws (7/8, 1-1/8, 1-3/8, 1-3/4, 2, 2-1/2), 2 arbors and 1 arbor extension (12") for reach in difficult-to-cut surroundings.